Adrian Kingsley-Hughes/ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET’s key takeaways Excessive temperature is a key factor in premature battery wear. Car charging is the perfect storm when it comes to overheating. You can still charge in the car, but you have to take some precautions. I’ve been tracking the battery health of my daily driver iPhones for so long now that it’s practically second nature. It’s like a weird hobby/habit that I’ve picked...